Display apparatus



March 19, 1929. s. KILLMNICK DISPLAY APPARATUS Filed May 21, 1928 2'SheetsSheet IN V EN TOR.

BY Mm f/i ATTORNEY March 1929- s. KILLMNICK I DISPLAY APPARATUS Filed May 2],, 1928 2 Sheets-Sheet IN V EN TOR. I

H121 ATTORNEY Patented Mar. 19, 1929.

orre steer Fries.

'6 SAMUEL KILLIVINICK, or Prensa, onnairomn.

DISPLAY Application filed. May 21, 192 Serial No. 279,232;

changes of the matter to be displayed, which can be cheaply operated, and which is cient in its operation. o

A further object of my invention is to provide a novel rotary transparency holder, provided "with novel means for rotatabiy supporting it, and having novel means for the illumination of the transparency mem-- bers carried thereby.

Still another object of myinvention is to provide a novel and simple meansin tie transparency holder for supporting removably peripheral transparency display members, arranged for the quick and easy 111- sertion or removal of such members.

The novel features of my invention are hereinafter fully described and claimed.

In the accompanying drawings, which illustrate the preferred embodiment of my in- V vention, v v I Fig. 1 is a front elevation, partly broken away of my improved display apparatus. Fig. 2 is a section on the line 22 of Fig.1. Fig. 3 is an enlarged section on the line 3-3 of Fig. 4, the lamp bulb being omitted. Fig. 4: is a side elevation, partly broken away, of one of the rotary display holders, and the end supports therefor.

Fig. 5 is asection on the line 55 of Fig. 6, showing in the casing a portion ofthe holder driving mechanism.

Fig. 6 is a section on the line 6-6 of Fig. 5, parts being broken away. 7

Fig. 7 is an enlarged section through one of the sockets and parts connected therewith.

1 designates a rectangular casing having in its front and back observation openings 2, and having at opposite endsrespectively of said openings two vertical partitions 3 and 4C.

In the casing 1 between the partitions 3 and 4 are three rotary transparency display holders, each of which is provided with end members 5 and 6, the members 6 having each at its outer side an axial supporting stud 7 rotatably mounted in the partition 1.

Each member 5- is provided therethrough with an axial hole. Fixed in the partition 4 and extending th rethrough and through the holes respectively of the end'meniibers 5 are three electric lamp sockets .9 having their inner ends each adapted to have fitted therein a lamp bulb 10, 1, which bulb is disposed between the end members 5 and 6.

Each holder is provided with a plurality of spaced longitudinal T shaped bars 11, one set of ends of which are fastened to the adjacent end member 5, and the other set of ends of which are fastened to the adjacent end member 6.

Each end member, as shown, may be of .hexagonal form and provided in its inner side with peripheral flanges 12, spaced apart their ends and having extending radially inwardly between their ends the stems 13 of the shaped bars 11.

Fitted between the stems 13 and supported thereby are the longitudinal edges oft-ransparency display members 14, which are per-v meable each to the light projected from the adjacent bulb 10, one of the latter being mounted in each socket 9, when the device is to be operated.

The holders are respectively disposed so that, when revolved, the display members 1 1 of each holderwill consecutively appear in register with the adjacent observation opening2. Y 'For simultaneously revolving the holders, the studs 7 have respectively fastened to and revoluble with them three intermeshing gear wheels 15, the lowermost one of which meshes with a gear wheel 16, Figs. 5 and 6, fastened on a horizontal shaft 17 rotatably mounted at one end in the partition 1 and at its other end rotatable in a vertical standard 18 fastened at its bottom to the upper side of the base board 19 of the casing 1.

Fastened on and revoluble with the shaft 17 is a wheel 20 having six peripheral radial slots 21 adapted. to respectively receive a pin 22 extending laterally from one side of a wheel 23 fastened on and revoluble with a horizontal shaft 24:, one end of which is roarcuate concave portions into which is adapted to rotatably fit consecutively the arcuate periphery of a concentric boss 26 having an arcuate peripheral notch 27 between the ends of which is located and spaced therefrom the pin 22.

Fastened to and revoluble with the shaft 24: is a spur gear wheel 28 which meshes with a pinion 29 fastened to and revoluble with the armature shaft 30 of an electric motor 31 mounted on the base board 19.

lVhen the motor is operated, the pin wheel 23, will be rotated. by means of the pinion 29, gear wheel 28 and shaft 2 1-, and during each revolution of the wheel 23, the pin 22 will enter a slot 21, thereby turning the Wheel 20 until the pin passes out of the slot. On the turning of the wheel 20, the shaft 17 and gear 16 will turn part of a revolution, thereby revolving the holders through the intermediacy of the gears 15, the upper and lower holders revolving in one direction and the middle holder in the oppo- Site direction.

The ratio and arrangement of the gearing are such that at each time the pin wheel 23 will turn the wheel 20 a part of a revolution, each holder will be revolved a distance such that one of the transparency display members 1 lwill pass from register with the adjacent observation opening 2 and another will pass to register with that opening, thus consecutively and intermittently displaying the matter on the transparency members.

The two terminals of each socket 9, which may be of the usual type, may be connected in circuit with a source of electrical current, not shown. Each socket 9, effects a double function, that of supporting the lamp bulb in the holder, and that of providing a support on which one end of the holder may revolve. v

The transparency members 14 may be of transparent resilient material, such as celluloid, having slightly greater width than the spaces between adjacent bars 11, so, when sprung into place the members 14 will be convex on their outer sides, as shown.

I do not limit my invention to the structure shown and described, as many modifications, within the scope of the appended claims, may be made without departing from the spirit of my invention.

What I claim is 1. In a display apparatus, a display member having two end members provided respectively with means for being axially rotatably supported, and T shaped longitudinal peripheral bars having radially inwardly extending stems adapted to have removably supported between them the longitudinal edges of transparency display members, said edges being supported by and between the stems and heads of said bars, one set of ends of the latter being fastened to one end member and the other set of ends of the bars being fastened-to the other end member, openings being .provided between said bars through which light from the in-' terior of said display member is adapted to be projected through said transparency display members.

2. In a display apparatus, a casing having observation openings in two opposite sides, a rotary member comprising end members, longitudinal bars connecting said end members and having spaces between them, and

an axial support on one of said end members rotatably mounted in said casing, means on said casing for rotatably supporting the other end member, transparency members mounted between said bars and supported thereby, and means in said rotary member for projecting light between said spaces and through said transparency members and said openings.

In testimony whereof I have signed my name to this specification.

SAMUELKILLMNIOK. 

